There is no powerful jet of gas coming from Sagittarius these days, but above and below the center of the Milky Way sits two large bubbles of gamma-ray emitting gas, which is possible evidence of the powerful jet that caused the red giants near it. 4 million years ago to lose their outer layer.
“Jet preferably operates on the big red giants,” Zaczek said. “They can be effectively eliminated by the jet.”Zajek says that red giant stars are more vulnerable to jets like this than others because of how big they are. These types of stars are formed when the center of small stars is so filled with helium that it can no longer burn its hydrogen fuel and instead burns hydrogen to the layer around the center. This causes the outer layer of the star to expand, which in turn causes the surface to cool and become red. The resulting shape makes red giants like Sagittarius * a prime target for jets.
As these red giants orbiting Dhanu A * must pass through the jet zajac, the outer layer is described hundreds or thousands of times before ripping off and the red turns blue. His team calculated that the jet is most effective at ripping the outer layer of red giants within 13 light years of a black hole.
According to Science News, astronomer Tuan Doe of the University of California, Los Angeles, says he believes “combining such mechanisms could help fully understand the scarcity of red giants” is.” He says that it is something other than a jet that has caused a shortage of red giants away from the black hole.Both Do and Zajaček believe it may be the work of a large disk of gas orbiting a black hole millions of years ago. As the red giants orbited the black hole, they presumably found themselves passing through the said disk and the gas of the disk tore their outer layers in the process.
For more black hole science, read about the recent discovery of the closest black hole to Earth and then read about this black hole that is nine times larger than the Sun that is dragging into space and time. Examine this black hole which then appears to be breaking the laws of physics.
Wesley LeBlanc is a freelance news writer and guide producer for IGN. You can follow him Twitter @LeBlancWes.